Demountable rim.



R. M. BAIRD.

DEMOUNTABLE RIM.

APPLICATION FILED NOV. 29. 1916.

11 ,%58 1 1 9 I Patented Jan. 8, 1918.

2 SHEETSSHEET 1.

R. M. BAIRD.

DEMOUNTABLE RIM.

APPLICATION FILED NOV. 29. I916.

Patented J an. 8, 1918.

2 SHEETSSHEET 2- 1 %53Jl19u gwuawto'a ROBERT M. BAIRD, 0F SALT LAKECITY, UTAH, ASSIGNOR OF GIVE-THIRD T0 BRUCE E.

BAIRD AND ONE-THIRD TO W. ECCLES BAIRD, BOTH OF SALT LAKE CITY, UTAH.

DED'IOUN'TABLE RIM.

Specification of Letters Fatent.

Patented J 8, 1918..

Application filed November 29, 1916. Serial No. 134,115.

To all whom it may concern."

Be it known that I, ROBERT M. Benn) a citizen of the United tiltatesresiding at Salt Lake City, in the county of Salt Lake and State ofUtah, have invented new and useful Improvements in Demountable Rims, ofwhich the following is a specification.

This invention relates to vehicle wheel rims and pertains particularlyto demountable rims for motor cars and the fastening devices therefor.

One object of the invention is to provide a demountable rim which may bequickly and easily removed from or attached to the vehicle wheel by themanipulation of a comparatively small number of fastening devices.

Another object of the invention is to pro vide a simple fastening devicewhich may be attached to any motor car wheel and which will inherentlyprevent axial or circumferential movement of the rim on the wheel felly.

Other details and features of the invention will be described andclaimed in the an nexed specification and claims and illustrated in theaccompanying drawings in Which- Figure 1 shows a section of a vehiclewheel illustrating the position of the rim on the wheel felly and thecombination of the locking mechanism engaging the blocks on the rim;

Fig. 2 represents a sectional View taken on line 2-2 of Fig. 1;

Fig. 3 represents a view of the inside of the rim looking at the lockblocks and the rim spacing block members;

Fig. 4 represents a view of the telly rim illustrating the position ofthe projecting ings on the felly band;

F ig. 5 represents a side elevation of the wheel and rim illustratingthe locking device engaging the rim;

Fig. 6 illustrates a modification of the locking device in which themovable locking member is formed of two individual pivoted parts inwhich the pivot member operates in a slot.

Like numerals refer to like parts throughout the various figures.

1 represents the felly of a wheel having spokes 2, and a circumferentialband I? tightly inclosing the felly. 4 represents the usual commercialdemountable rim adapted to be slipped on and off of the telly 1 andretained in position by suitable fastening means. Fastened to the rim land adjacent the lateral edges thereof are a plurality of lock blcckmembers 5 arranged in pairs axially opposite each other andsubstantially at each side of the fellv 1. These blocks 5 may beattached rigidly to the rim d in any manner suitable but preferably theyare welded so as to provide a gradual curve from the contour of the rim4 to the side of the block 5 and also for absolute rigidity with respectto the rim. A represents the side of the rim first to be applied, thatis the inner side, and B represents the outer side of the rim. On theouter side B of the rim and at the ends of the block members 5 are rimspacing block members 6, preferably formed an extension of the block 5,which project inwardly and engage both the rim i and the fclly band henthe rim d is slipped over the felly 1 and the felly band 3 the rimspacing blocks 6 engage the telly band to limit the movementof the rim,space the rim concentrically with respect to the felly band and toprovide a tight fit. On the lock blocks 5 on the inner side of the rim Aand located opposite the rim spacing blocks 6 are a like number ofprojections 7 likewise formed as a part of the block 5, which assist inspacing the rim on the wheel felly. These projections 7 are shorterradially than the spacing blocks 6 and do not interfere with the takingon or off of the rim from the wheel. Additional spacing blocks 7,secured to the folly or rim, may be located suitable intervals about therim according to the size of the latter and the use for which the rimwas designed. In addition to the spacing blocks 6 for limiting themovement of the rim on the wheel axially, the blocks 5 on the outer sideB of the rim are constructed to be thicker radially than the blocks onthe A. or inner side of the rim l whereby the outer side of the felly 1or felly band 3 is engaged by the lock block members 5 on the outer sideof the wheel as the rim is applied and effectively prevents the rim frombeing slipped over too tar. This spacing action ot the rim spacingblocks 6 and blocks also provides tor the reception of the lockingmember and the true engagement of the same with the lock blocks, as willbe turther described.

Reterring in detail to the construction ot the locking member 8 it willbe observed that this member is substantially U-shaped in cross section,the parallel arms extending along the outside of the telly 1 and closelyembracing the same. The member 8 is pivotally mounted on the telly bymeans ot a bolt or hinge member 9. Either side or arm ot the member 8 isformed atter the manner of a plate having a curve corresponding to thearc ot the wheel or rim. In the open position, as in dotted lines inFig. 1, the member 8 lies clear ot the rim 4 and between the spokes whenwithdrawn to its tull extent. In the closed position, the member 8embraces the telly and the arms engage the inner wall of the lock blocks5. These arms are held in a rigid position between the lock blocks andthe telly on either side of the telly and rim and thus ettectivelyprevent axial movement of the rim on the telly. The closing action otthe member 8 into engagement with the lock blocks tends to slightlytorce the extreme lower edges ot the member 8 together and the initialmovement of the member 8 into engagement with the blocks 5 isfacilitated by the contour of the part 8 which has at its lowermostcorner a cutaway or slightly curved surtace indicated by 8*.Circumterential movement of the rim on the telly is prevented by thetight fitting engagement between the ends ot the member 8 and the endsof the blocks 5 as indicated at 8 and 8. To prevent circumterentialthrust trom loosening the mounting of the member 8 and causing the pivotbolt 9 trom wearing a hole in the telly, the telly band 3 is providedwith axially extending lugs 3 which closely embrace the ends of theparallel arms ot the member 8 when in a closed position and receive thethrust instead of the member 9.

The part 8 is provided with a positive tastening mechanism tor holdingthe member 8 in the closed position and tor effectively preventingmovement or untastening ot the part 8 and any rattle or noise such as isoften tound in fastening devices tor demountable rims. T his fasteningmechanism includes a pivotally mounted spring member 10 fastened to theupper side ot the U-shaped member 8 and extending the length thereof.

Retaining means for holding the spring 10 in the locked position isprovided by metal member 11 which extends underneath the member 8, thelength thereot and preferably is countersunk into the telly 1. Oppositeends of the member 11 are recurved and act as retaining means tor thespring 10. l i hen the member is in the closed position the member 10 isfitted under the recurved end 11 ot the member 11 and swung into posiionparallel to the movement ot the member 8. The opposite end ot the member10 is then depressed and engaged with the latching end 11 and firmlyheld in place. The member 11 is held fixed against any looseningmovement by a rivet 11 which extends through the telly 1- and telly band3 and is riveted to the latter and the member 11 (Fig. 2). I

In order that the locking member 8 may he held in the open position, tofacilitate ready'removal ot the rimfrom the wheel there is provided aspring member 12 which lies between the member 8 and the top ot thetelly. This spring 12 is tastened to the underside ot the member 8 bysuitable tastening means 13 and is compressed by the member 8 when thelatter is in the tastened or operative position. When the part 8 is inthe released position the spring 12 assumes the position noted in dottedlines in Fig. 1. If it be desired adjacent locking members may bepivoted to move in opposite directions in order that the end 8 ot thelock members, first to engage the block 5 in the closing movement, mayexert atightening action in opposite directions on the rim (Fig. 5).

Referring in detail to the modification shown. in Fig. 6 it will benoted that the U-' shaped member 8 is provided in two parts and arrangedto slip into engagement with the lock blcck members trom oppositedirections, each side ot the part Sbeing provided. with individual anddistinct mountings and as shown herewith having a slotted engagementwith a member 9 carried by the telly. Suitable fastening means may beprovider tor this modification as is shown in Figs. 1. 2 and 5. Byhaving a plurality ot oppositely swinging members 8 it is possibletoobtain unusually rigid connections tor avoiding circumferential thrustof the rim against the locking members. The sharp angle illustrated at 8in Fig. 1 may be duplicated at the respective ends in this modification.

Changes in proportion naterial and location ot the part may be madewithout departing from the scope 0t this invention.

lVhat I claim is 1. In combination, a wheel telly, a demountable rimthereon, rim securing means comprising two lock block members on saiddemountable rim arranged axially opposite each other at the sides ctsaid telly, and a locking member mounted on said telly and extendingaxially across the same and adapted to be engaged between the telly andthe l side of the rim and rigid.

lock block on each side of said telly whereby axial movement of the rimon the telly is prevented.

2. In combination, a wheel telly, a demountable rim thereon, rimsecuring means comprising two lock block members on said demountable rimarranged axially opposite each other at the sides ot said telly, and alocking member mounted on said telly and extending axially across thesame and adapted to have a wedging engagement between the telly and thelock block on each side of said telly, whereby axial movement of the rimon the telly is prevented.

3. In combination, a wheel telly, a demountable rim thereon, rimsecuring means comprising two lock block members on said demountable rimarranged axially opposite each other at the sides of said telly, and asubstantially U-shaped locking member mounted on the telly andstraddling the same and having parallel arms adapted to have a wedgingengagement between the telly and the lock block on each side of saidrim, whereby axial movement of the rim on the telly is prevented.

4. In combination, a wheel telly, a de mountable rim thereon, rimsecuring means comprising two lock block members on said rim arrangedaxially opposite each other, one on each side or" said telly, and alocking member mounted on said telly and adapted to be engaged betweenthe telly and the lock block on each side of said rim whereby axialmovement of the rim on the telly is prevented, the lock block on oneside of the rim extending centrally and axially adjacent the endsthereof to provide a cam surface between said rim and said telly wherebysaid block and cam surtace engages the telly and limits the movement ofsaid rim in one di rection axially of said telly.

5. In combination, a wheel telly, a telly band on said wheel telly, ademountable rim thereon, rim securing means comprising two lock blockmembers on said rim arranged axially opposite each other at the sides ofsaid telly, a locking member mounted on said telly and adapted to beengaged between the telly on each side thereof and the lock block oneach side ot said rim, movement ot the rim on the telly is prevented,and rim spacing members adjacent the ends ot the said block members onone with respect thereto and located between the rim and said telly,whereby axial movement of the rim in one direction is checked by theengagement of the said rim spacing members against the telly band.

6. In combination, a wheel telly, a demountable rim thereon, rimsecuring means comprising two lock block members on said rim arrangedaxially opposite each other whereby axial at the sides of said telly, asubstantially U-shaped locking member mounted on the telly and havingparallel arms straddling the same and adapted to have a wedgingengagement between the telly and the lock block on each side ot said rimwhereby axial movement of the rim on said telly 1s prevented, and aprojecting shoulder at each end of said lock block members arranged toreceive the parallel arms between the same whereby circumferentialmovement of the rim on the tellv is prevented.

7. In combination, a wheel telly, a metal telly band thereon, ademountable rim on said telly, rim securing means comprising two lockblock members 011 said rim arranged axially opposite each other at eachside of said telly, a substantially U-shapcd locking member mounted onthe telly and having parallel arms straddling the same and adapted tohave a wedging engagement between the telly and the lock blocks on eachside ot said rim whereby axial and circumferential movement ot the rim011 the telly is prevented, and lug members on said telly bandprojecting axially at each side of said locking member whereby saidlocking member is braced against circumferential thrust of the rimagainst the locking member.

8. In combination, a wheel telly, a demountable rim thereon, rimsecuring means comprising two 1001: block members on said rim arrangedaxially opposite each other at the sides of said telly, a substantiallyU- shaped locking member pivotally mounted on said telly and havingparallel arms straddling the same and engaging said lock blocks wherebyaxial and circumferential movement of said rim on said telly isprevented, and a fastening mechanism for holding said locking member inthe operative position comprising'a pivotally mounted spring mem her onsaid locking member and a double receiving member tor said spring memberfastened to the telly, extending along the same and beneath the lockingmember and having a recurved portion at each end thereof to receive theopposite ends of said spring member.

9. In combinatioma wheel telly, spokes tor said telly, a demountable rimon said telly, rim securing means comprising lock block members on saiddemountable rim arranged axially opposite each other at the sides 0tsaid telly, nd a pair of substantially U- shaped locking members betweenadjacent spokes pivotally mounted on said telly and having parallel armsstraddling the same and adapted to have a wedging engagement between thetelly and the lock block on each side 0t said rim, whereby axial andcircumferential movement of said rim on said telly is prevented.

10. A demountable rim tor vehicle'wheels having a plurality of lockblock members arranged 1n pairs on the inner side rim and axiallyopposite each other, said block members having an inner shoulder in 5 aplane parallel to the plane of the rim and an outer curved surface toconform with the contour of the curved edge of the rim.

Copies of this patent may be obtained for In testimony whereof I aflixmy signature of said in presence of two witnesses.

ROBERT M. BAIHD. Vitnesses HARRY S. HARPER, B. HOLLINGS.

five cents each, by addressing the Commissioner of ?atent's,

Washington, D. 0.

